fix: drop node 12 and 17 (#135)

Author: SimenB

.github/workflows/nodejs.yml

@@ -34,7 +34,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [12.x, 14.x, 16.x, 17.x]
+        node-version: [14.x, 16.x, 18.x]
     runs-on: ubuntu-latest
 
     steps: